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County · Idaho

Custer County

4,597Population
7.5 %Change since 2020
42Net migration
4.8 %Unemployment rate

Facts

Population
4,597 (2024)
Change since 2020
7.5 %
Net migration
42 (2023)
Unemployment rate
4.8 % (2025)
State
Idaho
Population base, April 2020
4,276 (2020)
Births
38 (2023)
Births per 1,000 residents, 2023
8.3
Deaths
54 (2023)
Deaths per 1,000 residents, 2023
11.7
Natural change, 2023
-16
International migration
7 (2023)
Domestic migration
35 (2023)
Net migration per 1,000, 2023
9.1
Postal code
ID
FIPS code
16037

Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS

Unemployment rate, annual average

199020254.84.5
PeriodValue
20254.8 %
20245.2 %
20234.9 %
20224.6 %
20215.8 %
20206.6 %
20195.1 %
20184.9 %
20175.2 %
20166.1 %
20156.2 %
20146.3 %

Population estimates, 2020–2024

202020244,5974,269
PeriodValue
20244,597
20234,531
20224,503
20214,444
20204,269